/*
 * This file is part of the Try! Engine project.
 *
 * Copyright 2010-2011 Emanuele Bertoldi. All rights reserved.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * You should have received a copy of the modified BSD License along with this
 * program. If not, see <http://www.opensource.org/licenses/bsd-license.php>
 */

#ifndef TRY_STEERING_H
#define TRY_STEERING_H

#include "action.h"

#define DEFAULT_MAX_SPEED 100.0f

namespace Try
{
    class Steering : public Action
    {
    protected:
        Try::Vector3 m_vel;
        float m_maxSpeed;

    public:
        Steering(BehaviorTree* parent, float max_speed = DEFAULT_MAX_SPEED, const Try::Vector3& vel = Try::Vector3());
        Steering(float max_speed = DEFAULT_MAX_SPEED, const Try::Vector3& vel = Try::Vector3(), BehaviorTree* parent = 0);
        virtual ~Steering();

        Try::Vector3 velocity() const;
        float maxSpeed() const;
        float speed() const;

        void setMaxSpeed(float max_speed);

        Try::Vector3 seek(const Try::Vector3& pos, const Try::Vector3& target);
        Try::Vector3 flee(const Try::Vector3& pos, const Try::Vector3& target);
        Try::Vector3 arrive(const Try::Vector3& pos, const Try::Vector3& target, float slowing_distance);
    };
}

#endif // TRY_STEERING_H
